[    1.919041] ip (252) used greatest stack depth: 12376 bytes left
[    2.411147] ip (280) used greatest stack depth: 12344 bytes left
[    7.978985] ip (679) used greatest stack depth: 12288 bytes left
[   15.744398] mpls_gso: MPLS GSO support
[  718.343973] blackhole_netdev_xmit(): Dropping skb.
[  718.344044] blackhole_netdev_xmit(): Dropping skb.
[  718.344084] blackhole_netdev_xmit(): Dropping skb.
[  718.344121] blackhole_netdev_xmit(): Dropping skb.
[  727.750516] blackhole_netdev_xmit(): Dropping skb.
[  727.750572] blackhole_netdev_xmit(): Dropping skb.
[  727.750606] blackhole_netdev_xmit(): Dropping skb.
[  727.750641] blackhole_netdev_xmit(): Dropping skb.
[ 1050.393590] blackhole_netdev_xmit(): Dropping skb.
[ 1050.393656] blackhole_netdev_xmit(): Dropping skb.
[ 1050.393687] blackhole_netdev_xmit(): Dropping skb.
[ 1050.393721] blackhole_netdev_xmit(): Dropping skb.